Planer type milling machine for mold machining

Abstract

The invention discloses a planer type milling machine for mold machining, and relates to the technical field of machining equipment.The planer type milling machine comprises a milling machine body, a machine table installed in the milling machine body and a movable end installed at the bottom of the machine table, a cutter head is rotatably installed on the outer side of the machine table through a hydraulic supporting arm, and two layers of cutter heads are installed on the outer side of the cutter head; a cutter assembly is arranged between the cutter head and the cutter disc and comprises a circle of base fixedly installed on the inner side of the cutter disc, a cutter containing section is formed in the middle of the base in a penetrating mode, double-end push rods are distributed in the cutter containing section, and clamping elastic pieces are fixedly installed on the outer sides of the output ends of the double-end push rods. A nursing assembly is arranged on the outer side of the cutter assembly; the double-layer tool bits are clamped and replaced through the cutter assembly, and therefore more diversified tool bits are provided for the movable end. The planer type milling machine for mold machining has the advantages of being high in compactness, low in cost and high in operation completeness.

Description

Technical Field

[0001] This invention relates to the field of machining equipment technology, and in particular to a gantry milling machine for mold processing. Background Technology

[0002] In the field of mold processing, gantry milling machines are used for milling, drilling, tapping, and other processes on large workpieces. To meet the needs of multi-process machining, modern milling machines are usually equipped with automatic tool changers. In the existing technology, common drilling and tapping centers or small gantry milling machines often adopt a combination mode of "main cutter head + auxiliary cutter head" in order to balance tool change speed and tool capacity. That is, a rotary main cutter head is responsible for rapid tool change, and an independently driven auxiliary cutter head is added to its side to supplement the main cutter head with tools.

[0003] However, in actual operation, this structure requires the main cutter head and the auxiliary cutter head to each be equipped with independent drive motors, transmission mechanisms and tool holders, resulting in a complex overall structure and high manufacturing costs. Furthermore, the side-mounted auxiliary cutter head extends horizontally, which not only increases the footprint of the equipment but also easily causes interference when processing large molds, limiting the working range of the milling machine. The tool needs to be transferred from the auxiliary cutter head to the main cutter head and then from the main cutter head to the spindle, resulting in a long tool change path and long auxiliary time, which reduces processing efficiency. Summary of the Invention

[0004] This invention discloses a gantry milling machine for mold processing, which aims to solve the technical problems of existing drilling and tapping machines and milling machines having complex tool changing structures and occupying a large space.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A gantry milling machine for mold processing includes a milling machine, a machine base installed inside the milling machine, and a movable end head installed at the bottom of the machine base. A cutter head is rotatably mounted on the outer side of the machine base via a hydraulic support arm. The cutter head covers and is distributed on the outer side of the movable end head. Two layers of cutter heads are mounted on the outer side of the cutter head. A cutting tool assembly is provided between the cutter head and the cutter heads. The cutting tool assembly includes a base fixedly mounted on the inner side of the cutter head. A tool placement area is opened through the middle of the base. Double-headed push rods are distributed inside the tool placement area. A clamping spring is fixedly mounted on the outer side of the output end of the double-headed push rod, and a pair of cutter heads are clamped and fixed by the clamping spring. A drive motor is distributed on the top of the double-headed push rod, and the output end of the drive motor is vertically connected to the top of the double-headed push rod. A care component is provided on the outside of the cutting blade assembly. The care component includes a bracket mounted on the inside of the base. The drive motor is fixedly installed in the middle of the bracket. Air nozzles are symmetrically installed on both sides of the bracket. The air nozzles are close to the tail end of the blade. The cutting assembly clamps and replaces the double-layered blade head, thereby providing the mobile end head with a wider variety of blade heads, while the care assembly provides dust protection for the spare blade heads.

[0006] By incorporating a cutter head structure with a built-in cutting tool assembly based on existing gantry milling machine technology, this cutter head achieves dual-head switching through the double clamping springs built into the cutting tool assembly, in conjunction with double-head push rods and a drive motor. This results in a double-layered cutter head, effectively combining two traditional cutter heads into one, eliminating the need for a separate secondary cutter head and its drive system. This simplifies the mechanical structure, reduces manufacturing costs and failure rates, and doubles the tool capacity without significantly increasing the lateral volume of the tool magazine (it only extends radially when needed). It is particularly suitable for installation on the crossbeam of a gantry milling machine with limited space. In addition, the additional maintenance component can maintain the spare cutter head through air blowing and physical shielding, thereby improving the reliability of equipment operation.

[0007] In a preferred embodiment, a set of clamping pulleys are symmetrically distributed at both ends of the blade placement section. Each set of clamping pulleys is rotatably mounted on the outside of the base and simultaneously presses against the blade head. A snap-fit ​​ring is provided through the outside of the blade head, and the clamping pulleys are engaged inside the snap-fit ​​ring. The snap-fit ​​ring has snap-fit ​​teeth inside, and the clamping spring clip is clamped and engaged on the outside of the snap-fit ​​teeth.

[0008] By further incorporating clamping pulleys and locking rings, and clamping springs and locking teeth into the blade head and cutting assembly, the stability of the blade head during quick assembly is maintained, while not hindering workers from independently replacing the blade head, thus improving the convenience of the equipment.

[0009] As can be seen from the above, the gantry milling machine for mold processing provided by the present invention has the following technical effects.

[0010] Based on existing gantry milling machine technology, a cutter head structure with a built-in cutting tool assembly is set up. This cutter head uses the double clamping springs built into the cutting tool assembly, in conjunction with the double-headed push rods and the drive motor to move the cutter head. First, the switching between dual cutter heads is realized, resulting in the cutter head being divided into inner and outer layers. The traditional two cutter heads are combined into one, eliminating the independent secondary cutter head and its drive system, simplifying the mechanical structure, reducing manufacturing costs and failure rates, and doubling the tool capacity without significantly increasing the lateral volume of the tool magazine (it only extends radially when needed). It is especially suitable for installation on the crossbeam of a gantry milling machine in a space-constrained environment. Secondly, all tools are on a single rotary table, eliminating the need for a pre-exchange action from the secondary tool head to the main tool head, thus shortening the maximum tool change path and improving processing efficiency. At the same time, this equipment can dynamically adjust the extension state of the floating tool holder according to the needs of the processing program, flexibly switching between "compact mode" and "large capacity mode". Meanwhile, the installation method, which uses double clamping springs and double-headed push rods to push and fix the device, is convenient for quick disassembly and installation. Finally, the additional care components can maintain the spare blades by blowing air through the nozzle and physically shielding them, thereby improving the integrity of the equipment operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0012] Figure 2 This is a side view of the overall structure proposed in this invention.

[0013] Figure 3 This is a schematic diagram of the cutter head structure proposed in this invention.

[0014] Figure 4 This is a schematic diagram of the internal structure of the cutter head proposed in this invention.

[0015] Figure 5 This is a schematic diagram of the cutting component structure proposed in this invention.

[0016] Figure 6 This is a schematic diagram of the bottom structure of the cutting assembly proposed in this invention.

[0017] Figure 7 This is an exploded view of the nursing component structure proposed in this invention.

[0018] Figure 8 This is a schematic diagram of the cutter head structure proposed in this invention.

[0019] In the diagram: 1. Milling machine; 2. Machine base; 3. Moving end; 4. Hydraulic support arm; 5. Cutter head; 6. Cutter head; 601. Snap ring; 602. Snap tooth; 7. Cutting assembly; 701. Base; 702. Cutter placement area; 703. Clamping pulley; 704. Double-headed push rod; 705. Clamping spring; 706. Drive motor; 7061. Fixing sleeve; 8. Care assembly; 801. Bracket; 8011. Dust baffle; 8012. Slot; 802. Air nozzle; 8021. Air pipe; 803. Back plate; 8031. Through slot. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] The gantry milling machine for mold processing disclosed in this invention is mainly used in scenarios where the cutting head is switched during mold processing.

[0022] Reference Figures 1 to 8 A gantry milling machine for mold processing includes a milling machine 1, a machine base 2 installed inside the milling machine 1, and a movable end head 3 installed at the bottom of the machine base 2. A cutter head 5 is rotatably mounted on the outside of the machine base 2 via a hydraulic support arm 4. The cutter head 5 is distributed on the outside of the movable end head 3. Two layers of cutter heads 6 are installed on the outside of the cutter head 5. A cutting tool assembly 7 is provided between the cutter head 5 and the cutter heads 6. The cutting tool assembly 7 includes a base 701 fixedly installed on the inside of the cutter head 5. A tool placement section 702 is opened through the middle of the base 701. Double-headed push rods 704 are distributed inside the tool placement section 702. A clamping spring 705 is fixedly installed on the outside of the output end of the double-headed push rod 704, and a pair of cutter heads 6 are clamped and fixed by the clamping spring 705. A drive motor 706 is distributed on the top of the double-headed push rod 704, and the output end of the drive motor 706 is vertically connected to the top of the double-headed push rod 704. A care component 8 is provided on the outside of the cutter assembly 7. The care component 8 includes a bracket 801 mounted on the inside of the base 701. A drive motor 706 is fixedly installed in the middle of the bracket 801. Air nozzles 802 are symmetrically mounted on both sides of the bracket 801. The air nozzles 802 are close to the tail end of the cutter head 6. The double-layered blade head 6 is clamped and replaced by the cutting assembly 7, thereby providing more diverse blade heads 6 for the mobile end head 3, while the care assembly 8 provides dust protection for the spare blade head 6.

[0023] In this embodiment: Figure 2For example, when replacing the cutter head 6, the hydraulic support arm 4 first drives the cutter disc 5 to rotate towards the machine platform 2 until the corresponding cutting blade assembly 7 inside the cutter disc 5 is vertically distributed at the bottom of the moving end head 3. The cutting blade assembly 7 has a reserved blade placement area 702 inside. At this time, the machine platform 2 controls the moving end head 3 to move vertically and then reset, inserting the cutter head 6 located at the bottom of the moving end head 3 into the inside of the blade placement area 702. At this time, the clamping spring 705 located inside the blade placement area 702 will clamp the outside of the cutter head 6. As the moving end head 3 resets and moves, the cutter head 6 will disengage from the moving end head 3. At this time, the cutter disc 5 rotates according to the position of the cutter head 6 to be replaced, and the double-headed push rod 704 retracts and outputs. The shaft drives two cutter heads 6 to move centrally, while the drive motor 706 drives the double-headed push rod 704 and the centrally moving cutter head 6 to rotate, replacing the required cutter head 6 to the outside of the base 701 and distributing it below the moving end head 3. At this time, the machine tool 2 controls the moving end head 3 to move vertically, inserting it into the inside of the cutter head 6 and locking it. After that, the moving end head 3 drives the corresponding cutter head 6 to disengage from the inside of the cutter placement area 702, completing the replacement of the cutter head 6. When the drive motor 706 drives the double-headed push rod 704 and the centrally moving cutter head 6 to rotate, the air nozzle 802 will blow and clean the tail of the cutter head 6, blowing out impurities and dust without affecting the docking of the cutter head 6 and the moving end head 3.

[0024] Among them, a fixing sleeve 7061 is fixedly installed on the outer side of the output end of the drive motor 706. The fixing sleeve 7061 is sleeved and fixed on the outer side of the double-headed push rod 704. A back plate 803 is fixedly installed on the bottom of the double-headed push rod 704. The back plate 803 is distributed on the outer side of the cutter head 5 and serves to block dust. The back plate 803 has symmetrical through slots 8031 ​​on both sides. The cutter head 6 is distributed inside the through slot 8031, providing space for the cutter head 6 to move when driven by the double-headed push rod 704.

[0025] Furthermore, the moving end head 3 and the cutter head 6 use a quick-engagement electronic control element, which belongs to the prior art, so it will not be described in detail here.

[0026] Specifically, a dust baffle 8011 is provided on the side of the bracket 801. The dust baffle 8011 covers the tail of the cutter head 6 located in the inner ring to prevent large particles of impurities from entering the interior of the spare cutter head 6.

[0027] Reference Figures 5 to 8In a preferred embodiment, a set of clamping pulleys 703 are symmetrically distributed at both ends of the blade placement section 702. Each set of clamping pulleys 703 is rotatably mounted on the outside of the base 701. A retaining ring 601 is provided through the outside of the blade head 6, and the clamping pulleys 703 are engaged inside the retaining ring 601, providing initial stability for the blade head 6 without affecting the insertion and removal of the blade head 6 by the moving end 3. A retaining tooth 602 is provided inside the retaining ring 601, and the clamping spring 705 is clamped and engaged on the outside of the retaining tooth 602. When the double-headed push rod 704 drives the clamping spring 705 and the blade head 6 to rotate, the stability of the blade head 6 is improved.

[0028] Reference Figure 5 and Figure 7 In a preferred embodiment, the bracket 801 has slots 8012 extending through both ends, and the air nozzle 802 is engaged and fixed inside the slots 8012. The top of the air nozzle 802 is connected to an air pipe 8021, and is connected to a pump installed inside the cutter head 5 through the air pipe 8021 to introduce high-pressure gas into the air nozzle 802.

[0029] Working principle: When using, with Figure 2For example, when replacing the cutter head 6, the hydraulic support arm 4 first drives the cutter disc 5 to rotate towards the machine base 2 until the corresponding cutting blade assembly 7 inside the cutter disc 5 is vertically distributed at the bottom of the moving end head 3. The cutting blade assembly 7 has a reserved blade placement area 702 inside. At this time, the machine base 2 controls the moving end head 3 to move vertically and then reset, inserting the cutter head 6 located at the bottom of the moving end head 3 into the inside of the blade placement area 702. This causes the clamping pulleys 703 on both sides of the blade placement area 702 to engage with the locking ring 601 on the outside of the cutter head 6. At the same time, the clamping spring 705 located inside the blade placement area 702 will be clamped in the locking teeth 602 on the inside of the locking ring 601. As the moving end head 3 resets and moves, the cutter head 6 will disengage from the moving end head 3. At this time, the cutter disc 5 rotates according to the position of the cutter head 6 to be replaced, and the double-headed push rod 704 retracts the output shaft to drive the two cutter heads 6 to move in the center. Simultaneously, the drive motor 706 drives the double-headed push rod 704 and the centrally moving cutter head 6 to rotate, replacing the required cutter head 6 to the outside of the base 701 and distributing it below the moving end head 3. At this time, the machine tool 2 controls the moving end head 3 to move vertically, inserting it into the inside of the cutter head 6 and locking it. After that, the moving end head 3 drives the corresponding cutter head 6 to disengage from the inside of the cutter placement area 702, causing the clamping pulley 703 to disengage from the locking ring 601 and the clamping spring 705 to disengage from the locking tooth 602, completing the replacement of the cutter head 6. When the drive motor 706 drives the double-headed push rod 704 and the centrally moving cutter head 6 to rotate, the pump located inside the cutter disc 5 will operate synchronously, filling the air nozzle 802 with high-pressure gas. The gas will be ejected through the air nozzle 802, thereby cleaning the tail of the cutter head 6, blowing out impurities and dust without affecting the docking of the cutter head 6 and the moving end head 3.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A gantry milling machine for mold processing, comprising a milling machine (1), a machine base (2) installed inside the milling machine (1), and a movable end head (3) installed at the bottom of the machine base (2), characterized in that, A cutter head (5) is rotatably mounted on the outer side of the machine base (2) via a hydraulic support arm (4). The cutter head (5) covers and is distributed on the outer side of the moving end (3). Two layers of cutter heads (6) are mounted on the outer side of the cutter head (5). A cutting assembly (7) is provided between the cutter head (5) and the cutter heads (6). The cutting assembly (7) includes a ring of bases (701) fixedly mounted on the inner side of the cutter head (5). A through-hole is provided in the middle of the base (701). The blade section (702) has a double-headed push rod (704) distributed inside. A clamping spring (705) is fixedly installed on the outer side of the output end of the double-headed push rod (704), and a pair of blade heads (6) are clamped and fixed by the clamping spring (705). A drive motor (706) is distributed on the top of the double-headed push rod (704), and the output end of the drive motor (706) is vertically connected to the top of the double-headed push rod (704). A care component (8) is provided on the outside of the cutter assembly (7). The care component (8) includes a bracket (801) mounted on the inside of the base (701). The drive motor (706) is fixedly installed in the middle of the bracket (801). Air nozzles (802) are symmetrically mounted on both sides of the bracket (801). The air nozzles (802) and the tail end of the cutter head (6) are close to each other. The cutting assembly (7) clamps and replaces the double-layered cutting head (6), thereby providing the moving end head (3) with more diverse cutting heads (6), while the care assembly (8) provides dust protection for the spare cutting head (6).

2. The gantry milling machine for mold processing according to claim 1, characterized in that, A set of clamping pulleys (703) are symmetrically distributed at both ends of the blade placement section (702). Each set of clamping pulleys (703) is rotatably installed on the outside of the base (701) and simultaneously presses against the blade head (6).

3. The gantry milling machine for mold processing according to claim 1, characterized in that, The bottom of the double-headed push rod (704) is fixedly installed with a back plate (803), which is distributed on the outside of the cutter head (5).

4. A gantry milling machine for mold processing according to claim 2, characterized in that, A retaining ring (601) is provided through the outer side of the cutter head (6), and the clamping pulley (703) is engaged inside the retaining ring (601).

5. A gantry milling machine for mold processing according to claim 4, characterized in that, The snap ring (601) has snap teeth (602) inside, and the clamping spring (705) clamps and engages with the outside of the snap teeth (602).

6. A gantry milling machine for mold processing according to claim 1, characterized in that, A fixing sleeve (7061) is fixedly installed on the outer side of the output end of the drive motor (706), and the fixing sleeve (7061) is sleeved and fixed on the outer side of the double-headed push rod (704).

7. A gantry milling machine for mold processing according to claim 1, characterized in that, The side of the bracket (801) is provided with a dust baffle (8011), which covers the tail of the cutter head (6) located in the inner ring.

8. A gantry milling machine for mold processing according to claim 1, characterized in that, The bracket (801) has slots (8012) extending through both ends, and the air nozzle (802) is engaged and fixed inside the slots (8012).

9. A gantry milling machine for mold processing according to claim 1, characterized in that, The top of the air nozzle (802) is connected to an air pipe (8021), and the air pipe (8021) is connected to a pump installed inside the cutter head (5).

10. A gantry milling machine for mold processing according to claim 3, characterized in that, The back plate (803) has symmetrical through slots (8031) on both sides, and the cutter head (6) is distributed inside the through slot (8031).

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